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Dipartimento di Fisica - Politecnico di Milano

[16/10/2018 - 15:00]

Dr. Michael Spanner (Steacie Laboratory, National Research Council of Canada (NRC))

"Bond Softening Revisited - Strong-Field Photodissociation of H2+ in Two-Colour Cross-Polarized Laser Fields"


mar 16/10/2018 - 15:00 - Aula Rossa, Dipartimento di Fisica



Single-colour strong-field photodissociation of H2+ has been well studied in the early days of strong-field physics.  The dominant photodissociation mechanism is typically understood as a field-induced avoided crossing between the Sigma_g (ground electronic surface) and the Sigma_u (first excited electronic surface) in the Floquet basis of electronic states.  In this work, photodissociation of H2+ is studied using a novel laser setup comprised of a 2.3 micron laser cross-polarized with a 730 nm laser fields.  Unexpected and striking angular structures are observed in the proton momentum spectrum following photodissociation of H2+. These angular structures are explained using an extended two-colour Floquet analysis.

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Doctoral School on “Advanced Atomic Scale Characterisation” from 21th to 25th October 2019, Department of Physics, Politecnico di Milano



lo studio pubblicato su Science coordinato dal Prof. Giacomo Ghiringhelli, fa nuova luce sulle caratteristiche dei cuprati

IEEE Best Ph.D. Thesis Award 2019

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